Clinical Indications in Orthopedic Trauma The PFNA2 screw is indicated for trauma stabilization and internal fixation of extracapsular proximal femoral fractures:
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Intertrochanteric Fractures: Stable two-part (AO/OTA 31-A1) and unstable multi-fragmentary (AO/OTA 31-A2) fractures involving loss of the posteromedial buttress.
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Pertrochanteric & High Subtrochanteric Fractures: Complex proximal fractures extending into the diaphyseal shaft stabilized with long PFNA2 constructs.
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Reverse Obliquity Fractures: Transverse and shear intertrochanteric fracture lines (AO/OTA 31-A3) susceptible to secondary medial displacement.
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Geriatric Fragility Fractures: Osteoporotic hip trauma requiring broad load-bearing contact in diminished bone mineral density.
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Pathological Trochanteric Lesions & Non-Unions: Structural fixation of impending fractures from metastatic lesions and revision osteosynthesis for failed prior fixations.